Improvement in machines for trimming shoe-soles



Patented July 30,1872.

improvement in Machines far. Trimming Shoe-Soles.

UNITED STATES- A'IENT FFICE.

CHARLES A. SMITH, on LYNN, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FQR TRIMMING SHOE-SOLES.

To all persons to whom these presents may come:

Be it known that 1 CHARLES A. SMITH, of Lynn, of the county of Essex and State of Massachusetts, have invented a new and useful Machine for Trimming Shoe-Soles at their edges; and I do hereby declare the same to be fully described in the following specification and represented in the'accompanying draw ing, of which- Figure 1 is a top view, Fig. 2 a side elevation, Fig. 3 a front-end view, and Fig. 4 a

A longitudinal section of it.

ting disk or knife fixed upon one end of a shaft or arbor, B, duly supported in bearings a b of a frame poppet or carrier 0, formed as shown. Underneath the rotary cutter or circular knife A is a gage or tongue, D, provided with a shoulder or abutment, a, erectedon it, and with reference to the knife, in manner as shown. The said shoulder or abutment may be a separate piece of metal secured by one or more Set-screws to the bracket E, from'which the tongue D is extended,'such bracket being fastened to thecarrier G, and the set-screws going through a slot or slots in the abutment-.

piece. On its upper edge the tongue isflat and provided with a shallow groove or ohan-' Specification forming part of Letters Patent No. 129,995, dated July 30, 1872.

nel to receive the-.cutting-edge of the rotary knife, in manner as shown. The arbor should have fixed upon it apulley or gear for putting it in revolution.

Fig. 5 represents the position of a shoe with the knife, ton gue, and should er during the process of trimming the edge of the sole. In such drawing the shoe is shown at S, the tongue or guard D going into the an gle, groove, or space between the upper g and the sole f, and serving not only to guard the upper from being out by the knife, but to gage the final depth of cut of the knife. The abutment 0 supports the shaving while the knife may be at work, and also determining the width of the shai'ing'to be cut. e

The rotary circular knife, when in operation, not only cuts the sole, but feeds or aids in feeding the shoe or boot along, so as to rapidly and quickly trim the edge of the sole.

I claim 1. The rotary-knife A, combined.v and arran ged,.as specified, with the stationary tongue or shoe-upper guard D, grooved to receive Such knife, as stated.

2. Also, the rotary knife A, the stationary tongue D, and the abutment or shoulder 0, arranged and combined substantially in manner and for the purpose. and to operate as explained. 1 CHARLES A. SMITH.

Witnesses:

R. H. EDDY, J. R. Snow. 

